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Yasuto Imai

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Golf club head
    • Patent number 6,402,637
    • Issue date Jun 11, 2002
    • Daiwa Seiko, Inc.
    • Akinori Sasamoto
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head
    • Patent number 6,193,614
    • Issue date Feb 27, 2001
    • Daiwa Seiko, Inc.
    • Akinori Sasamoto
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head
    • Patent number 6,056,649
    • Issue date May 2, 2000
    • Daiwa Seiko, Inc.
    • Yasuto Imai
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head and method of manufacturing thereof
    • Patent number 5,899,820
    • Issue date May 4, 1999
    • Daiwa Seiko, Inc.
    • Hideharu Minematsu
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head and method of manufacturing the same
    • Patent number 5,816,936
    • Issue date Oct 6, 1998
    • Daiwa Seiko, Inc.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head
    • Patent number 5,616,088
    • Issue date Apr 1, 1997
    • Daiwa Seiko, Inc.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head
    • Patent number 5,547,194
    • Issue date Aug 20, 1996
    • Daiwa Seiko, Inc.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS